19931384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 42854400

約数和(自身を除く): 22923016

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 61, 79, 88, 94, 122, 158, 188, 244, 316, 376, 488, 517, 632, 671, 869, 1034, 1342, 1738, 2068, 2684, 2867, 3476, 3713, 4136, 4819, 5368, 5734, 6952, 7426, 9638, 11468, 14852, 19276, 22936, 29704, 31537, 38552, 40843, 53009, 63074, 81686, 106018, 126148, 163372, 212036, 226493, 252296, 326744, 424072, 452986, 905972, 1811944, 2491423, 4982846, 9965692, 19931384]

約数ペア:

[(1, 19931384), (2, 9965692), (4, 4982846), (8, 2491423), (11, 1811944), (22, 905972), (44, 452986), (47, 424072), (61, 326744), (79, 252296), (88, 226493), (94, 212036), (122, 163372), (158, 126148), (188, 106018), (244, 81686), (316, 63074), (376, 53009), (488, 40843), (517, 38552), (632, 31537), (671, 29704), (869, 22936), (1034, 19276), (1342, 14852), (1738, 11468), (2068, 9638), (2684, 7426), (2867, 6952), (3476, 5734), (3713, 5368), (4136, 4819)]